Not at all, and I didn't even remotely suggest as such. Supporting having user's feedback is an idea. Acting self-centered is the way you act, your attitude. One has nothing to do with the other.
I didn't act self-centered, I acted as if what I said was true, and I still believe it is.
If you say; I've never tried X, but it sucks. I'm pretty certain that's speculation, because you've never tried it, and that's exactly what I told GNOME developers.
It's speculation, and I'm pretty certain about it, that's why I acted so certain. What's wrong about acting so certain, when you are?